Hair dryer



FIG. 1 is a front perspective view of a hair dryer showing our new design;

FIG. 2 is a right side elevational view of the hair dryer;

FIG. 3 is front elevational view of the hair dryer;

FIG. 4 is a rear elevational view of the hair dryer; and,

FIG. 5 is a top plan view of the hair dryer. 

The ornamental design for a hair dryer, as shown and described. 